Heel pad



Aug. 17, 1943. M, MARGOLIN HEEL PAD Filed Aug. 28, 1940 ATTORNFYS Patented Aug. 17,1943 j 2,3267ig3f f fjszavb ,'HEEL PAD MafiMag01i;- 1g, `.Applicationliiwsezs,1940;sfiaarN 354211556. .n '8- iiis. (Cif'G--:o My invention relates to a` novel-heelpad'and 'fr'k'thair'spacelbtwen' thehelfpadf and more particularly my invention'relat'esto apad the insole. Y to be employed in the heel area of gi'shoe;whichl It` isiv a furthrdbjct' o im'y inventioifto propad has such construction as to provide forced vvide a'nvellhel "pa aving enclosed "gr oovs breathing in the heel area and desirableresilince 5-Y W h s'pced pa' t dalla cf a`t'ed ontheunderside for the heel. thereof yand perfo ons'fei'te'iidi'ngthr'oixgh'said The arts have long been concerned" witnirrif heel padto provements in construction of ShesiQrthe pr- "The`s d "A pose of improving foot comfort.V Advances have co sfidifa'tionof 'the 'drawing' beenmade in providing such foot crnfor'tfin the.v 'T10 and th"spcic'dription 'thereof` which here forepartarea of the shoe, but it has proveddiifollows".

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creased resilience and springin'ess;.andjiurther Vi-Fgtire is"afplanvievvf.the-upper side'of a to provideabreathingactionhy'vforcing a-"cir'c-V l: lation of air in the heel area. To'enable the-'air ffFigne `6`is a.t Dlanvieioftlie'lower side of a to circulate from benefath't'he'heel padtdthe nfodiliid;*fori'of'mylfeel'padiA interior of the shoe, I-provide perforationsinand Figure 'lfis'al clssisictio taken alongry the'lne through the heel pad.- Y -Y 25 1l-"1 offFiglre; i

When employed in combination w'itlfrthelel Figdr 8` i 's "osss'cti takerr'alon'g'the line silient insole such as is more.particlarly'V de- 8`il8"'of'Fi gri'6l y Y scribed in my copending vapplications SerialNo. 1ig1ii1e`9`isaicrdss`'section(taken't along the' line 257,351, Serial No; 290,559and Serial"No."3'06`,77 8 Slgoigr. L l v .l of which this is a continuation in part, confpletel 36 Figr '0"is`f a r`ssf"'"s'"ction' taken along' the foot comfort `from heel-totoe is provi'ded with 'Iinelf-l''of Fig'fure- 5 f increased resilience and completeA brea'thll'xg,` Referring" rivvnifrspecically 'tothe' vdrawthroughout the'rfoot area.- ing, in Figure 1 1 show aheelE pad 'll-.having Accordingly, it'is an object of -my invention prforations'"l2v Whtch"'"e5te1dthrough-saidheel to provide a novel resilient heel pad. l 'padfll". 'Onfthefilnder sfide'othishe'el pad Il t is a further object of my invention tdproare ygroo'fveS l `4"hav` 1`ng 'spaced'apart'walls I'5and vide a novel heel Ypad adapted' to canse/"forced T61 The grooves"hereshovvrr'areenclosedat'the` breathing in the heel area. nds'by'th Walls. l1y and- IBL:` Theenclosedig'roov It is a further object o myy inventiontopro'- defined bvlth Walls l5,l 116;l 'l'fzandi |'8"forms"an vide a novel heel pad having grooves and per- 4'0 ai'rl pketthatfinateriaily increases"thelresilience forations located in said heel'pad. theheel"padwithutiweakeningit"*as" would It is a further object of my invention to pobithec'ase: ifthe groovefextended' to the 'edge vide a novel resilient heel pad having Asiibs'tanof the heel pad and was n'ot'fenclosed bythe end tially transverse grooves with spaced apart Walls y walls" Iland 1li. located on the under side of said heel pad.'V '4'5 Thedotvnvva'rdpresslre'ofthe'helinWalking It is a further object of my invention to 'pro'- on-tlfi'esehelpads'casesthecompression ofltheV vide a novel heel pad having lugs or projections enclosed g'io e` andtherebyr causes"air`ito"be of resilient material downwardly extending from f rce'dfornth nblosdf-g'rveftothe 'adjacent said heel pad. p

' It is a further object of my invention to prolvide a, novel heel pad having on its underside substantially transverse grooves Wit h gs15aced theenclosedlgr'oves apart Walls and resilient lugs downwardly'decegffthe' eel-ip dr pending from said heel pad, which lugs v provide forced breathing `both` from the grooves' and heel pad. IAlthough I have shown the enclosed grooves as extending transversely across the heel pad, it is within the purview or" my invention to place these grooves at any angle with respect to the heel pad and, if desired, these enclosed grooves may be formed to interconnect with one another or they may be formed to connect with the periorations l2.

Further as shown below in connection with Figure 7, it is within the purview of my invention to place perforations in the enclosed groove I4 itself so that air may be forced directly from the enclosed groove through the perforation located therein to the foot.

In Figures 3 and 4,the cross sectional Viewsj The lugs Vmay be ofY various sizes and shapes depending upon the breathing action desired, but

it isimportant that suilcient lugs be employed so that there is-no unevenness or bumpiness in the heel pad.

7 In Figure l I show in cross section the relative position of the grooveslugs and periorations there presented show the construction of the grooves and perforations'with respect to the heel 4grooves 23.

' shaped end provides increased resilience and pad and it is to be understoodthat'these grooves', can be varied in size and shape, but it is desir- A able that the walls of the grooves be spaced apart sofasto provide the air pockets whose function is s above set forth. In Figure 5 I show the upper side of a modified form of the heel pad of my invention, and this modified form will be more apparent from a consideration of Figures 6 to 10 Vin which the modified construction is more fully set forth. In s In Figure 6 can be seen theunderside of this modied heel pad 2B in which are enclosed grooves 2l and perforations 22. Located in the groove 23 are lugs 24 adapted to downwardly project from the heel pad as more particularly shown in Figures 7, 8 and 9, and these lugs bear against the insole or shoe -porti-on on which the heel pad rests. l

`I further provide lugs such as 26 which are positionedbetween the grooves 21 and 23. Both the lugs 24 and 26exert a positive action in increasing both the resilience of the heel pad and in providing forced breathing inthe heel area. The lugs 24 when compressed temporarily deform the enclosed grooves 23 and when pressure is lifted from the` lugs, 4the grooves return to their normal shape and circulation of airVv from the groove results. In the case of the lug 26, the compression of this lug tends to inwardly compress the adjacentV grooves 2l and28 and upon release of pressure from the lug 2S, the grooves 2l and 28 return toY their normal shape. This de forming and compression of the grooves 2l and 23 and subsequent return to their normal shape also causesV air to lliow therefrom through the perforations to the interior of the shoe.

Additionally the downwardly projecting lugs V2li and 2S provide an air pocket or air space between the pad 2B and the insole or shoe portion directly beneath the pad.Y Upon heel pressure being exerted thereon, the lugs 24 and 264are compressed longitudinally, reducing the size of s the air pocket between the heel pad and the insole positioned therebeneath and air therefrom is forced through the perforations inthe heel pad to the shoe interior.

though I have shown these lugs as in the form of rod-like downward projections, it is within the purview of my invention to form the downward projections in the shape of bars. That is, the projections have a-large dimension in onedirection relative to a lesser width. When such bars are used, a lesser number of projections are breathing effects since upon compression of the lug by the heel greater downward movement is obtainable since the cup shaped end tends to spread out. -This increased downward movement also provides increased breathing in addition to increased resilience since air is forced out from the cup enclosure and hence adds to the air pressure generated by my construction and further the increased distance that the heel pad is Aforced downA increases the compression on the air in the'grooves and in the space between the heel pad and the insole on which trests. 4 In Figures 9 and 19 I show cross sections to more fully set forth the cons'tructionof my novel heel pad and speciiically in: Figure 1S I show the perforations 3l which connect the grooves 30 with the interior of the shoe. K

It is to be understood that proper air communicationis to be provided between this heel pad and the shoe interior. This can be effected even with a cover for the heel pad, but the cover must be capable of air communication and this may be provided by providing a porous cover member or by providing perforations in the cover member which correspond VVwith and co-act with the perforations in the h eel pad.

By means of the constructions above set forth I have provided a novel heel pad in which the combination of the grooves, lugs and perforations effects a very desirable resilience and breathing actionl in the heel area. This breathingaction lisf(accomplished without the flexing of the unit/andY is based on only the downward V compression of the heel pad by the heel. fIhe downwardly projecting lugs in combination with the grooves act inet-,least two ways to provide.thisincreasedresilience and breathing. As pointed out the lugs not only provide an air pocket between the heel pad and the shoe portion therebeneath but alsoby their compression and s deforming action on the grooves cause air movement therefrom. y Y

tAlthough I have shown my grooves` as being substantially rectangular in kcross section and thus having straight side walls, it is within the purview oi my invention to modify the shape of these grooves, but it is essential that the grooves be such-that the long walls thereof spaced from one another.

Various modiications Yof this heel pad con struction andthe combination of elements I have shown will be apparent to those slr-tiled in this art. I intend, therefore, to be limited not by the specific description thereof as set forth hereinabove, but only by the claims hereto appended.

I claim: v p i l. A heel pad comprising a rubber-like material, grooves located in the bottom of said rubberspaced apart from one another, the ends of said grooves being closed, and downwardly extending projections located between said grooves.

2. A heel pad comprising a rubber-like material, and grooves located in the bottom of said rubber-like material, the walls of said grooves being spaced apart from one another, the ends of said grooves being closed, and downwardly extending projections located over said grooves.

3. A heel pad comprising a rubber-like material, grooves located in the bottom of said'rub.- ber-like material, the walls of said grooves being spaced apart from one another, perforations communicating with the top of said heel pad located in said rubber-like material between said grooves, and downwardly extending projections of resilient material located on the bottom of said heel pad.

4. A heel pad comprising a rubber-like ma-vv the transmission of air from said grooves and interior of the shoe above said air space to the said heel pad.

6. A heel pad comprising cellular rubber hav ing the general contour of a heel, grooves located in the bottom of said heel pad, said grooves having a substantially rectangular cross-section, the

walls of said grooves being spaced apart-from one another, a plurality of downwardly extending projections of resilient material located on the 'bottom of said heel pad, said downwardly extending projections resting on an insole to provide an air space between said heel pad and said insole, perforations located in said grooves providing for the transmission of air from said grooves and said airspace to the interior of the shoe above said-heel pad,

terial, grooves located in the bottom of said rubber-like material, the walls of said grooves being spaced apart from one another, perforations communicating with the top of said heel pad located in said rubber-like material, and downwardly extending solid projections of resilient material located on the bottom of said heel pad, said downwardly extending projections having a base terminating in an inverted cup shape.`

5. A heel pad comprising cellular rubber having the general contour of. a heel, grooves located in the bottom of said heel pad, said grooves having a substantially rectangular cross-section, the walls of said grooves being spaced apart from one another, the ends of said grooves being closed, a plurality of downwardly extending projections of resilient material located on the bottom of said heel pad, said downwardly extending projections resting on an insole to provide an air space between said heel pad and said insole. perforations through said heel pad providing for 7. A heel pad comprising cellular rubber having the general contour of a heel, grooves located in the bottom of said heel pad, said grooves havf Y ing a substantially rectangular cross-section, the walls of said grooves being" spaced apart from one another, a plurality of downwardly extending solid projections of resilient material located on the bottom of saidheel pad, said downwardly extending projections having a base terminating in an inverted cup shape, said downwardly extending projections resting on an insole to provide an air space between said heel pad and said insole,vand perforations through said heel pad providing for the transmission 'of air from said grooves and said air space to the interior of the shoe above said heel pad.

8. A heel pad comprising a rubber-like material, grooves located in the bottom of said rubber-like material, the Walls of said grooves being'` spaced apart from one another, and downwardly extending projections located in a portion of said grooves, said downwardly extending projections extending beyond the bottom ofthe heel pad. Y

MEYER MARGOLIN. l 

